Thank you so much A Red Panda.
I do have a new hobby. My T suggested that I get a membership at CMHA (Canadian Mental Health Association). With a (free) membership, I can go to the YMCA for free, so I can use their pool and equipment to get strong after surgery. The Y is 2 blocks from my apartment. When I went to register they asked about my interests. I said I loved to garden but can't anymore because of 1) my knees and 2) because I live in an apartment. It turns out that they have many indoor plants and need someone to look after them. I volunteered. They also need someone to teach basic computer skills, so I volunteered for that too.
As soon as I'm able to get around well, I'll be there volunteering. I'm really looking forward to it.